Install the Tesla Remote Energy Meter and CTs

Plan Meter and CT Locations

Before installing the meter and/or CTs, ensure none of the following maximum distances are exceeded:

Distance to Measure Wiring Option Tesla P/N (if applicable) Maximum Distance
Meter to Point of Measurement CT lead only 2033376-xx-y 1.5 m (59 in)
If additional length is required: CT extension (3.5 m (138 in) long) 2060713-xx-y 8.5 m (335 in) (CT extension (3.5 m) + CT extension (3.5 m) + CT lead (1.5 m) = max 8.5 m)
Meter to Breaker Voltage Harness Not applicable (included in the kit) 600 mm (23.6 in)
If additional length is required: 16-10 AWG (1.5 - 6 mm2) AC wiring Not applicable (wiring supplied by installer) To maintain accuracy for revenue grade metering (RGM), keep the meter within 61 m (200 ft) of its breaker when using 14 AWG (2.5 mm2) wire

Install the Meter

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Note
Connect the meter to a breaker in the same panel as the loads and/or solar being measured. If the meter is measuring both solar production in the backup circuit and non-backup loads, install the meter in the backup panel with the solar breaker(s).
  1. Using the screws provided in the meter kit, attach the meter to the inside of the main distribution board or to another surface.
  2. Connect the voltage line harness leads to a dedicated two pole circuit breaker up to 20 A:
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    Note
    If unsure of the panel phases, see Troubleshooting: Identifying Breaker Phase.
    1. Black Wire: Connect the black wire to L1
    2. Red Wire: Connect the red wire to L2
    3. Blue Wire: If using the CT 3 port, splice the blue wire with the red L2 wire as shown below; otherwise cap the blue wire
    4. White Wire: Connect the white wire to the Neutral busbar
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    Note
    If a dedicated circuit breaker is not available, the voltage line harness can be spliced to existing breakers.
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    Note
    For the Remote Energy Meter to function properly, the voltage line harness leads must be connected to the correct breaker phases. The following are common reasons for the voltage line harness being miswired to the incorrect phases:
    • Some breaker types cross phases so that the breakers are on the opposite phases from the supply lugs
    • Some localities do not follow the L1 = black, L2 = red wire color scheme, which can result in incorrectly identifying phase by wire color
  3. Plug the voltage line harness into the meter.

Install the CTs

To install a CT:
  1. Plug the CT into the CT port on the meter.
    • If installing Site CTs:
      1. Plug the CT measuring L1 into the CT1 port.
      2. Plug the CT measuring L2 into either the CT2 or CT3 port.
    • If installing a Solar CT:
      • IF the CT is measuring L1, plug it into the CT1 port.
      • IF the CT is measuring L2, plug it into either the CT2 or CT3 port.
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      Note
      Only (1) CT is required to measure Solar because total power output is calculated by the software.
  2. Pinch the CT to open it, then close the CT around the conductor(s) being measured.
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    Note
    Ensure the CT is installed so that the side with white text on the CT housing pointing toward the power source (service entrance / grid for Site CTs, solar inverter for Solar CTs). Always verify CTs are in the correct orientation by observing power flow in Tesla One.
    Figure 1. CT Orientation in Relation to Power Flow
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    Note
    Ensure the CT closes completely. If the CT is not closed, it will not measure properly. This is especially relevant if installing a CT around multiple conductors, or around large gauge wire.

Connect Tesla Remote Energy Meter to Powershare Gateway via Wi-Fi

Install the external antenna on the end of the Remote Energy Meter. If installing the Remote Energy Meter in a metal enclosure:

  1. Determine where the Tesla Remote Energy Meter will be installed:
    1. Bottom of the Panel: This is the preferred location for installing the Tesla Remote Energy Meter.
    2. Sides of the Panel: If there is no space at the bottom of the panel, mount the Tesla Remote Energy Meter to the side of the panel. In this case, more than 1 antenna extension cable might be needed to reach the knockout or hole at the bottom of the enclosure. The Remote Meter kit includes 1 extension cable, but up to (3) antenna extension cables can be connected.
    3. Inside a new enclosure: This is the least preferred option. In case there is no space inside the panel enclosure, a new enclosure must be mounted on the wall next to the panel to house the Tesla Remote Energy Meter.
  2. Determine the panel mounting type:
    • Flush Mount: Panel is mounted inside a wall (door is flush with the wall).
    • Surface Mount: Panel is mounted to a wall surface.
  3. For flush mount panels:
    1. Select a cable connector for routing the antenna extension cable through a knockout.
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      Note
      Tesla recommends the Arlington NM95 plastic snap-in cable connector.
    2. Determine the hole size needed to install the cable connector (e.g. 7/8 inch hole for a ½ inch cable connector).
    3. Drill a new hole or remove the corresponding panel knockout if available.
  4. For surface mount panels, drill a ¼ inch (6 mm) hole in the bottom of the enclosure to prevent water intrusion.
  5. Route the provided antenna extender through the enclosure hole as shown below.
  6. Thread the provided lock washer, nut, and cable connector (if applicable) onto the extender, then thread the antenna onto the end of the extender.
  7. If applicable, push the cable connector into place in the knockout, to secure the extender cable.
  8. Secure the antenna against the bottom of the enclosure.
1 External antenna input
2 External antenna extender
3 Lock washer
4 Nut
5 Plastic snap-in cable connector (provided by installer, Tesla recommends Arlington NM95 plastic snap-in cable connector)
6 External antenna

Meter configuration, including pairing the meter via Wi-Fi will be performed during Device Setup in Tesla One. See Configure Wi-Fi Connected Tesla Remote Energy Meter for commissioning instructions.

Power On the Meter

Once the meter and CT(s) have been installed, the meter breaker can be closed to power on the meter for device setup.
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CAUTION
For any changes to meter wiring and/or CT placement, always OPEN the meter breaker to power the meter off before performing any work.